Kenn Humborg stated the following on Thu, Jun 22, 2000 at 06:19:04PM +0100 :
> > Say I had 2 hosts A & B, both have a scsi card ( id's 7 & 6 repectivly )
> > and a scsi disk ( id 0 ).
> > This disk has a single filesystem on it.
> > Can host A mount the fs rw and host B mount it ro.
>> Not really. Host A will have a consistent view of the
> fs, but Host B won't. It won't know when to invalidate stuff
> that it's cached. Host A could serve the filesystem over
> NFS, thus ensuring that all read access goes through Host A's
>> Right now, your best bet is probably the heartbeat project
> at http://linux-ha.org. Every so often the mailing list
> heads off into a discussion on shared disk handling, so
> there is probably some info on these issues there.
>> In the long term, the Linux Cluster Cabal's VMS-like
> clustering will be the way to go.
>> > If host A goes away for some reason ( crash etc ) can host B remount the
> > fs rw or will much stuff break.
>> You'll need to use a journalling filesystem or you'll spend
> ages fscking before you can safely remount.
This drbd thingy coupled with say reiserfs could have promise.
I guess, I relate more to a satanic chicken and an over sexed
goat more than tech support people :)
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!